package com.hmdp.utils;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import com.hmdp.dto.UserDTO;
import com.hmdp.entity.User;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

public class LoginInterceptor implements HandlerInterceptor {


//    private StringRedisTemplate stringRedisTemplate;
//
//    // 使用构造函数注入
//    public LoginInterceptor(StringRedisTemplate stringRedisTemplate) {
//        this.stringRedisTemplate = stringRedisTemplate;
//    }

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // 1 、判断是否需要拦截 (ThreadLocal 中是否有用户)
        if(UserHolder.getUser() == null){
            // 不存在 拦截
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            return false;
        }
        // 存在用户 放行

        return true;
    }
}
